Quartzite is a very hard stone which is composed of quartzsandstone that has been metamorphosed. Quartzite is much harderthan the parent rock, sandstone, which makes it the perfect choicefor hard wearing paving. It is formed from quartz sandstone that hascome into contact with deeply buried magmas which change its statethrough heat. Quartz Slate: Roofing slate, slate tile, China slate, natural slate, billiard slate, flooring slate, walling slate, Chinese slate, black slate, slate roofing, paving slate paving, floor slate, mushroom slate, slate gray, slate blue, slate grey, roofing tiles, flagstone, paving stones, roofing tiles, flooring tiles, roofing tile, paving stones, flooring tile, walling slate, cultural slate, cultural stone, mosaic slate, random slate, mesh, quarry, cube stone, stepped slate, countertop, window sill, pool slate 1. Quality: For polished 2cm thick tiles: Polished degree more than 85° , tolerance for thickness: +/-1mm. For 1cm thick tiles: Tolerance for thickness: +/-0.50mm 2. Colors: Grey, black, yellow, red, brown. 3. Size available: 30.5x30.5cm(12"x12"); 40x40cm; 45.7x45.7cm(18"x18"); 60x30cm; 60x60cm(24"x24") Cut-to-size products according to your requirements 4. Thickness: 10mm, 12mm, 15mm, 20mm, 30mm... 5. Surface finishing: Polished, Flamed, Honed, Brushed, sand-sprayed, antique... 6. Packing: Strong Fumigated Wooden crate with Plastic film and foam. 7. Popular Payment terms: 30% T/T deposit, 70% balance T/T against B/L Copy L/C at sight For other payment terms, please contact us for detail information. If you are interested in our products, please send us your detail requirements, we will offer you the best quality and prices.